.ob{--ob-inset:16px;--ob-radius:16px;inset:var(--ob-inset);border-radius:var(--ob-radius);background:var(--surface-primary);grid-template-columns:minmax(320px,38%) 1fr;display:grid;position:fixed;overflow:hidden}.ob-panel{padding:var(--space-3);background:var(--surface-primary);border-right:1px solid var(--border-secondary);border-radius:var(--ob-radius);transition:background .5s var(--ease);flex-direction:column;justify-content:flex-end;display:flex;position:relative;overflow:hidden}.ob-panel-art{position:absolute;inset:0}.ob-panel-art svg,.ob-panel-photo{width:100%;height:100%;display:block}.ob-panel-photo{object-fit:cover;object-position:center}.ob-panel-art svg,.ob-panel-photo{animation:ob-art .52s var(--ease) both}@keyframes ob-art{0%{opacity:0;filter:blur(10px);transform:scale(1.05)}to{opacity:1;filter:blur();transform:none}}.ob-brand{margin-bottom:var(--space-2);flex:none;align-self:flex-start;align-items:center;display:flex}.ob-panel-card{z-index:2;box-shadow:none;gap:var(--space-25);background:0 0;border-radius:0;flex-direction:column;padding:0;display:flex;position:relative}.ob-panel:after{content:"";z-index:1;pointer-events:none;background:linear-gradient(to top, var(--surface-primary) 0%, color-mix(in srgb, var(--surface-primary) 92%, transparent) 30%, color-mix(in srgb, var(--surface-primary) 55%, transparent) 62%, transparent 100%);height:58%;position:absolute;inset:auto 0 0}[data-theme=dark] .ob-panel:after{background:linear-gradient(to top, var(--surface-primary) 0%, var(--surface-primary) 34%, color-mix(in srgb, var(--surface-primary) 88%, transparent) 58%, color-mix(in srgb, var(--surface-primary) 45%, transparent) 80%, transparent 100%);height:64%}.ob-caption{color:var(--text-primary);text-wrap:balance;max-width:30ch}.ob-pb{color:var(--text-secondary);margin-top:0}.ob-bar{gap:var(--space-05);margin-top:0;display:flex}.ob-seg{border-radius:var(--radius-full);background:var(--border-strong);height:4px;transition:background .32s var(--ease);flex:1}.ob-seg.is-done{background:var(--interactive-primary);opacity:.55}.ob-seg.is-now{background:var(--interactive-primary)}.ob-right{min-width:0;min-height:0;padding:var(--space-4) var(--space-5) var(--space-3);justify-content:center;display:flex}.ob-col{gap:var(--space-3);-webkit-overflow-scrolling:touch;scrollbar-width:thin;flex-direction:column;width:100%;max-width:660px;min-height:0;display:flex;overflow:hidden auto}.ob-scroll{gap:var(--space-4);flex-direction:column;flex:none;min-height:0;display:flex}.ob-turn{gap:var(--space-05);animation:ob-rise .32s var(--ease) both;flex-direction:column;display:flex}.ob-turn-q{color:var(--text-tertiary)}.ob-turn-a{justify-content:flex-end;display:flex}.ob-pill{align-items:center;gap:var(--space-1);text-align:left;max-width:84%;padding:var(--space-1) var(--space-15) var(--space-1) var(--space-2);border-radius:var(--radius-full);background:var(--color-blue-50);border:1px solid var(--color-blue-100);color:var(--color-blue-700);cursor:pointer;transition:background .15s var(--ease), border-color .15s var(--ease);display:inline-flex}.ob-pill-t{min-width:0}.ob-pill-i{opacity:.45;transition:opacity .15s var(--ease);flex:none}.ob-pill:hover{background:var(--color-blue-100);border-color:var(--interactive-primary)}.ob-pill:hover .ob-pill-i,.ob-pill:focus-visible .ob-pill-i{opacity:1}@media (hover:none){.ob-pill-i{opacity:.75}}.ob-pill.is-skipped{border-color:var(--border-primary);color:var(--text-tertiary);background:0 0}[data-theme=dark] .ob-pill{color:var(--color-blue-300);background:#3b82f629;border-color:#3b82f666}.ob-active{gap:var(--space-1);animation:ob-rise .34s var(--ease) both;flex-direction:column;display:flex}.ob-prompt{color:var(--text-primary);text-wrap:balance}.ob-note{color:var(--text-secondary);max-width:52ch;font-size:var(--fs-body-lg);line-height:var(--lh-body-lg)}@keyframes ob-rise{0%{opacity:0;transform:translateY(8px)}to{opacity:1;transform:none}}.ob-dock{gap:var(--space-2);padding-top:var(--space-1);padding-right:var(--space-1);flex-direction:column;flex:none;display:flex}.ob-dock>.btn{align-self:flex-start}.ob-cards{gap:var(--space-15);flex-direction:column;margin-inline:-2px;padding:2px;display:flex}.ob-cards.is-grid{gap:var(--space-1);grid-template-columns:repeat(auto-fill,minmax(64px,1fr));max-height:none;display:grid}.ob-card{align-items:center;gap:var(--space-2);text-align:left;width:100%;padding:var(--space-2) var(--space-25);min-height:var(--tap);border:1px solid var(--card-border);border-radius:var(--radius-lg);background:var(--card-bg);box-shadow:var(--shadow-xs);cursor:pointer;transition:border-color .15s var(--ease), background .15s var(--ease), box-shadow .15s var(--ease);display:flex}.ob-card[data-subject]{background-color:var(--card-bg);border-color:var(--card-border)}.ob-card:hover{border-color:var(--border-strong);box-shadow:var(--shadow-sm)}.ob-card[data-subject]:hover{border-color:var(--border-strong);transform:translateY(-1px);box-shadow:0 1px 2px #1c19170a,0 8px 20px -10px #1c191724}.ob-card.is-on{border-color:var(--border-brand);background:var(--color-blue-50);box-shadow:inset 0 0 0 1px var(--border-brand)}.ob-card-badge{border-radius:var(--radius-full);background:var(--badge-bg,var(--color-blue-50));width:44px;height:44px;color:var(--badge-fg,var(--color-blue-700));flex:none;place-items:center;display:grid}.ob-card-badge.is-subject{--badge-bg:var(--sj-tint);--badge-fg:var(--sj-ink)}.ob-card-badge[data-persona=student]{--badge-bg:var(--persona-student-subtle);--badge-fg:var(--persona-student-bold)}.ob-card-badge[data-persona=parent]{--badge-bg:var(--persona-parent-subtle);--badge-fg:var(--persona-parent-bold)}.ob-card-badge[data-persona=instructor]{--badge-bg:var(--persona-instructor-subtle);--badge-fg:var(--persona-instructor-bold)}[data-theme=dark] .ob-card-badge[data-persona=brand]{--badge-bg:#3b82f626;--badge-fg:var(--color-blue-400)}.ob-card-badge{box-shadow:inset 0 0 0 1px color-mix(in srgb, var(--badge-fg,#1d4ed8) 12%, transparent)}[data-theme=dark] .ob-card-badge[data-persona=instructor]{--badge-fg:var(--persona-instructor)}.ob-card-body{gap:var(--space-05);flex-direction:column;flex:1;min-width:0;display:flex}.ob-card-title{color:var(--text-primary)}.ob-card.is-on .ob-card-title{color:var(--color-blue-700)}.ob-card-sub{color:var(--text-secondary)}.ob-card-tick{color:var(--interactive-primary);flex:none}.ob-card-go{color:var(--text-tertiary);opacity:.55;transition:transform .16s var(--ease), color .16s var(--ease), opacity .16s var(--ease);flex:none}.ob-card:hover .ob-card-go{opacity:1;color:var(--text-secondary);transform:translate(2px)}@media (prefers-reduced-motion:reduce){.ob-card-go{transition:none}.ob-card:hover .ob-card-go{transform:none}}.ob-cards.is-tiles{gap:var(--space-1);flex-direction:row;grid-template-columns:repeat(auto-fill,minmax(190px,1fr));max-height:none;display:grid;overflow:visible}.ob-cards.is-tiles .ob-card{padding:var(--space-15);align-items:flex-start;min-height:0}.ob-cards.is-tiles .ob-card-body{gap:0;min-height:40px}.ob-cards.is-tiles .ob-card-sub{font-size:var(--fs-caption);line-height:var(--lh-caption);color:var(--text-tertiary)}.ob-bands{gap:var(--space-4);flex-direction:column;margin-inline:-2px;padding:2px;display:flex}.ob-band{gap:var(--space-15);flex-direction:column;display:flex}.ob-band-label{color:var(--text-tertiary);text-transform:uppercase;letter-spacing:.06em}.ob-band:has([data-subject=Science]) .ob-band-label{color:var(--subject-science-ink)}.ob-band:has([data-subject="English Language Arts"]) .ob-band-label{color:var(--subject-ela-ink)}.ob-band:has([data-subject="Data & AI"]) .ob-band-label{color:var(--subject-data-ink)}.ob-band[data-region=India]{--rg-ink:var(--subject-ela-ink);--rg-base:var(--subject-ela-base);--rg-tint:var(--subject-ela-tint)}.ob-band[data-region=United\ States]{--rg-ink:var(--subject-mathematics-ink);--rg-base:var(--subject-mathematics-base);--rg-tint:var(--subject-mathematics-tint)}.ob-band[data-region=International]{--rg-ink:var(--subject-finance-ink);--rg-base:var(--subject-finance-base);--rg-tint:var(--subject-finance-tint)}.ob-band[data-region] .ob-band-label{color:var(--rg-ink)}.ob-band[data-region] .ob-card{border-color:color-mix(in srgb, var(--rg-base) 30%, transparent);background:color-mix(in srgb, var(--rg-tint) 55%, var(--surface-primary))}.ob-band[data-region] .ob-card:hover{border-color:color-mix(in srgb, var(--rg-base) 52%, transparent);background:var(--rg-tint)}.ob-band[data-region] .ob-card-title{color:var(--rg-ink)}.ob-cards.is-grid{gap:var(--space-1);flex-flow:wrap;max-height:none;display:flex}.ob-cards.is-grid .ob-card{flex:none;justify-content:center;width:56px;height:56px;min-height:0;padding:0}.ob-cards.is-grid .ob-card-body{flex:none;align-items:center}.ob-composer{align-items:center;gap:var(--space-1);padding:var(--space-05) var(--space-05) var(--space-05) var(--space-2);border:1px solid var(--input-border);border-radius:var(--radius-full);background:var(--input-bg);transition:border-color .15s var(--ease), box-shadow .15s var(--ease);display:flex}.ob-composer:focus-within{border-color:var(--input-border-focus);box-shadow:var(--shadow-focus-blue)}.ob-input{min-width:0;font-family:inherit;font-size:var(--fs-body);line-height:var(--lh-body);color:var(--text-primary);min-height:var(--tap);background:0 0;border:none;outline:none;flex:1}.ob-input::placeholder{color:var(--text-tertiary)}.ob-input:disabled{cursor:default}.ob-composer:has(.ob-input:disabled){border-color:var(--border-secondary);background:0 0}.ob-composer:has(.ob-input:disabled) .ob-input::placeholder{color:var(--text-tertiary);opacity:.8}.ob-input.is-code{font-family:var(--font-mono);letter-spacing:.32em}.ob-composer .ob-input:focus-visible{box-shadow:none}.ob-row{align-items:center;gap:var(--space-15);flex-wrap:wrap;display:flex}.ob-row .btn--primary:disabled,.ob-composer .btn--primary:disabled{opacity:1;background:var(--interactive-secondary);color:var(--text-secondary)}.ob-row .btn--ghost{color:var(--text-tertiary);font-weight:500}.ob-row .btn--ghost:hover:not(:disabled){color:var(--text-secondary)}.ob-chips{gap:var(--space-1);flex-wrap:wrap;display:flex}.ob-chip{min-height:40px;padding:0 var(--space-2);border:1px solid var(--card-border);border-radius:var(--radius-full);background:var(--card-bg);color:var(--text-primary);cursor:pointer;transition:border-color .15s var(--ease), background .15s var(--ease), color .15s var(--ease)}.ob-chip:hover{border-color:var(--border-strong)}.ob-chip.is-on{background:var(--color-blue-50);border-color:var(--interactive-primary);color:var(--color-blue-700)}.ob-bio-l{color:var(--text-secondary);margin-top:var(--space-1)}.ob-bio{resize:vertical;width:100%;min-height:84px;padding:var(--space-15) var(--space-2);border:1px solid var(--input-border);border-radius:var(--radius-lg);background:var(--input-bg);color:var(--text-primary);font-family:inherit;font-size:var(--fs-body);line-height:var(--lh-body);transition:border-color .15s var(--ease), box-shadow .15s var(--ease);outline:none}.ob-bio::placeholder{color:var(--text-tertiary)}.ob-bio:focus{border-color:var(--input-border-focus);box-shadow:var(--shadow-focus-blue)}.ob-back{align-self:flex-start}.ob-points-t{margin-top:var(--space-2);color:var(--text-tertiary);text-transform:uppercase;letter-spacing:.06em}.ob-points{gap:var(--space-15);margin-top:var(--space-1);flex-direction:column;padding:0;list-style:none;display:flex}.ob-points-f{margin-top:var(--space-2);max-width:60ch;color:var(--text-tertiary)}.ob-points li{align-items:flex-start;gap:var(--space-15);display:flex}.ob-point-i{border-radius:var(--radius-full);background:var(--pt-tint);width:32px;height:32px;color:var(--pt-ink);font-variant-numeric:tabular-nums;flex:none;place-items:center;display:grid}.ob-point-t{flex-direction:column;gap:2px;min-width:0;display:flex}.ob-point-h{color:var(--text-primary)}.ob-point-b{color:var(--text-secondary)}.ob-points li[data-accent=parent]{--pt-ink:var(--persona-parent-bold);--pt-tint:var(--persona-parent-subtle)}.ob-points li[data-accent=student]{--pt-ink:var(--persona-student-bold);--pt-tint:var(--persona-student-subtle)}.ob-points li[data-accent=instructor]{--pt-ink:var(--persona-instructor-bold);--pt-tint:var(--persona-instructor-subtle)}.ob-col[data-step=intro]{justify-content:center}.ob-col[data-step=intro] .ob-scroll{flex:none;justify-content:flex-start;overflow:visible}.ob-col[data-step=intro] .ob-scroll>:first-child{margin-top:0}.ob-col[data-step=intro]{gap:var(--space-5);max-width:720px}.ob-col[data-step=intro] .ob-scroll{gap:var(--space-5)}.ob-col[data-step=intro] .ob-prompt{max-width:18ch}.ob-col[data-step=intro] .ob-note{max-width:54ch;margin-top:var(--space-2)}.ob-col[data-step=intro] .ob-active{flex-direction:column;display:flex}.ob-col[data-step=intro] .ob-points{gap:var(--space-3);margin-top:var(--space-3)}.ob-col[data-step=intro] .ob-points li{gap:var(--space-2)}.ob-col[data-step=intro] .ob-point-t{gap:var(--space-05)}.ob-col[data-step=intro] .ob-point-i{width:40px;height:40px}.ob-col[data-step=intro] .ob-cta{margin-top:var(--space-2);min-width:260px}.ob-col[data-step=intro] .ob-row{gap:var(--space-2)}@media (width>=900px){.ob-right{padding:var(--space-6) var(--space-8) var(--space-5)}}.ob-cta{justify-content:center;align-self:flex-start;min-width:220px}.ob-alt{padding:var(--space-05) 0;cursor:pointer;color:var(--text-secondary);text-underline-offset:.18em;text-decoration:underline;-webkit-text-decoration-color:var(--border-strong);text-decoration-color:var(--border-strong);background:0 0;border:0;align-self:flex-start}.ob-alt:hover{color:var(--text-primary);text-decoration-color:currentColor}.ob-alt:focus-visible{box-shadow:var(--shadow-focus-blue);border-radius:var(--radius-xs);outline:none}.ob-err{color:var(--text-danger)}.ob-resume{margin-top:var(--space-1);padding:var(--space-1) var(--space-15);border-radius:var(--radius-md);background:var(--color-blue-50);color:var(--color-blue-700);align-self:flex-start}[data-theme=dark] .ob-resume{color:var(--color-blue-300);background:#3b82f626}@media (width<=767px){.ob{grid-template-rows:auto 1fr;grid-template-columns:1fr}.ob-panel{border-radius:var(--ob-radius) var(--ob-radius) 0 0;justify-content:flex-end;align-items:stretch;gap:var(--space-2);padding:var(--space-15) var(--space-2);border-right:none;border-bottom:1px solid var(--border-secondary);flex-direction:column}.ob-brand{align-self:flex-start}.ob-caption{display:none}.ob-panel-photo{opacity:.45}.ob-panel-card{box-shadow:none;background:0 0;flex:none;max-width:none;padding:0}.ob-panel .ob-pb{display:none}.ob-bar{margin-top:0}.ob[data-hero=compact] .ob-panel{min-height:20vh;padding:var(--space-15)}.ob[data-hero=compact] .ob-panel:after{height:70%}.ob-panel-card{gap:var(--space-1)}.ob[data-hero=full] .ob-panel{min-height:34vh;padding:var(--space-2);flex-direction:column;justify-content:flex-end;align-items:stretch}.ob[data-hero=full] .ob-brand{align-self:flex-start}.ob[data-hero=full] .ob-panel-photo{opacity:1}.ob[data-hero=full] .ob-caption{font-size:var(--fs-body);line-height:var(--lh-body);display:block}.ob[data-hero=full] .ob-panel-card{gap:var(--space-15);flex:none;max-width:none}.ob[data-hero=full] .ob-panel:after{height:62%}.ob-right{padding:var(--space-25) var(--space-2) calc(var(--space-2) + env(safe-area-inset-bottom))}.ob-row{gap:var(--space-1);flex-wrap:wrap}.ob-row .btn{white-space:nowrap}.ob-scroll>:first-child{margin-top:0}.ob-dock{padding-right:0}.ob-cards.is-grid .ob-card{width:48px;height:48px}.ob-points{gap:var(--space-1)}.ob-point-b,.ob-points-f{display:none}.ob:not([data-step=intro]) .ob-panel{min-height:0;padding:var(--space-1) var(--space-2);gap:0}.ob:not([data-step=intro]) .ob-panel-art,.ob:not([data-step=intro]) .ob-panel:after,.ob:not([data-step=intro]) .ob-caption{display:none}.ob:not([data-step=intro]) .ob-panel-card{gap:0}.ob-turn{gap:var(--space-1)}}.ob-cards>.ob-card{animation:ob-card-in .38s var(--ease) both}.ob-cards>.ob-card:first-child{animation-delay:0s}.ob-cards>.ob-card:nth-child(2){animation-delay:45ms}.ob-cards>.ob-card:nth-child(3){animation-delay:90ms}.ob-cards>.ob-card:nth-child(4){animation-delay:.135s}.ob-cards>.ob-card:nth-child(5){animation-delay:.18s}.ob-cards>.ob-card:nth-child(n+6){animation-delay:.225s}@keyframes ob-card-in{0%{opacity:0;transform:translateY(6px)}to{opacity:1;transform:none}}@media (prefers-reduced-motion:reduce){.ob-cards>.ob-card{animation:none}.ob-card[data-subject]:hover{transform:none}}.wc{--wc-route:.9s;--wc-stagger:.26s;background:var(--surface-primary);align-content:center;place-items:center;gap:var(--space-5);padding:var(--space-6);cursor:pointer;animation:wc-in .42s var(--ease) both;border-radius:16px;display:grid;position:fixed;inset:16px;overflow:hidden}@keyframes wc-in{0%{opacity:0}to{opacity:1}}.wc.is-leaving{animation:wc-out .32s var(--ease) both}@keyframes wc-out{0%{opacity:1;transform:none}to{opacity:0;transform:translateY(-12px)}}.wc-brand{top:var(--space-4);left:var(--space-4);position:absolute}.wc-pb{bottom:var(--space-4);left:var(--space-4);color:var(--text-tertiary);position:absolute}.wc-stage{width:min(520px,78vw)}.wc-svg{width:100%;height:auto;display:block;overflow:visible}.wc-route{stroke:var(--interactive-primary);stroke-dasharray:1200;stroke-dashoffset:1200px;animation:wc-draw var(--wc-route) var(--ease) both}@keyframes wc-draw{to{stroke-dashoffset:0}}.wc-stop{opacity:0;transform-box:fill-box;transform-origin:50%;animation:wc-drop .42s var(--ease-out-back,cubic-bezier(.34, 1.56, .64, 1)) both;animation-delay:calc(var(--wc-route) * .55 + var(--i) * var(--wc-stagger))}@keyframes wc-drop{0%{opacity:0;transform:translateY(-10px)scale(.6)}to{opacity:1;transform:none}}.wc-stop-dot{fill:var(--interactive-primary)}.wc-stop-halo{fill:var(--interactive-primary);opacity:.16}.wc-copy{text-align:center;align-items:center;gap:var(--space-2);flex-direction:column;display:flex}.wc-eyebrow{color:var(--interactive-primary);text-transform:uppercase;letter-spacing:.1em;animation:wc-rise .52s var(--ease) both;font-weight:600;animation-delay:.24s}.wc-h{color:var(--text-primary);text-wrap:balance;max-width:20ch;animation:wc-rise .56s var(--ease) both;animation-delay:.32s}.wc-sub{color:var(--text-secondary);max-width:44ch;animation:wc-rise .56s var(--ease) both;animation-delay:calc(var(--wc-route) + var(--wc-stagger) * 2)}@keyframes wc-rise{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:none}}.wc-chips{justify-content:center;gap:var(--space-1);margin:var(--space-05) 0 0;flex-wrap:wrap;padding:0;list-style:none;display:flex}.wc-chip{padding:var(--space-05) var(--space-15);border-radius:var(--radius-full);background:var(--surface-secondary);border:1px solid var(--border-secondary);color:var(--text-primary);animation:wc-rise .46s var(--ease) both;animation-delay:calc(var(--wc-route) * .55 + var(--i) * var(--wc-stagger))}@media (prefers-reduced-motion:reduce){.wc,.wc-route,.wc-stop,.wc-eyebrow,.wc-h,.wc-sub,.wc-chip{animation:none!important}.wc-route{stroke-dashoffset:0}.wc-stop{opacity:1}}.wc.is-reduced .wc-route,.wc.is-reduced .wc-stop,.wc.is-reduced .wc-eyebrow,.wc.is-reduced .wc-h,.wc.is-reduced .wc-sub,.wc.is-reduced .wc-chip{animation:none}.wc.is-reduced .wc-route{stroke-dashoffset:0}.wc.is-reduced .wc-stop{opacity:1}@media (width<=899px){.wc{padding:var(--space-4);gap:var(--space-4)}.wc-brand{top:var(--space-3);left:var(--space-3)}.wc-pb{bottom:var(--space-3);left:var(--space-3)}}.dc{background:var(--surface-primary);min-height:100dvh}.dc-head{z-index:10;background:color-mix(in srgb, var(--surface-primary) 82%, transparent);-webkit-backdrop-filter:blur(16px)saturate(1.4);backdrop-filter:blur(16px)saturate(1.4);border-bottom:1px solid var(--border-secondary);position:sticky;top:0}.dc-head-in{max-width:var(--shell);padding:var(--space-15) var(--space-3);align-items:center;gap:var(--space-3);margin-inline:auto;display:flex}.dc-brand{flex:none;align-items:center;display:flex}.dc-search{flex:1;min-width:0;max-width:520px;margin-inline:auto;position:relative}.dc-search-icon{left:var(--space-2);color:var(--text-tertiary);pointer-events:none;display:flex;position:absolute;top:50%;transform:translateY(-50%)}.dc-search input{width:100%;min-height:var(--tap);padding:0 var(--space-5) 0 var(--space-6);border:1px solid var(--input-border);border-radius:var(--radius-full);background:var(--surface-tertiary);color:var(--text-primary);font-family:inherit;font-size:var(--fs-body);transition:border-color .15s var(--ease), background .15s var(--ease), box-shadow .15s var(--ease);outline:none}.dc-search input::placeholder{color:var(--text-secondary)}.dc-search input::-webkit-search-cancel-button{appearance:none}.dc-search input:focus{background:var(--input-bg);border-color:var(--input-border-focus);box-shadow:var(--shadow-focus-blue)}.dc-search-clear{right:var(--space-05);border-radius:var(--radius-full);width:40px;height:40px;color:var(--text-tertiary);cursor:pointer;background:0 0;border:none;place-items:center;display:grid;position:absolute;top:50%;transform:translateY(-50%)}.dc-search-clear:hover{background:var(--interactive-secondary);color:var(--text-primary)}.dc-avatar{border-radius:var(--radius-full);background:var(--badge-neutral-bg);width:40px;height:40px;color:var(--badge-neutral-text);flex:none;place-items:center;font-weight:600;display:grid}.dc-avatar[data-persona=student]{background:var(--persona-student-subtle);color:var(--persona-student-bold)}.dc-avatar[data-persona=instructor]{background:var(--persona-instructor-subtle);color:var(--persona-instructor-bold)}.dc-avatar[data-persona=parent]{background:var(--persona-parent-subtle);color:var(--persona-parent-bold)}.dc-main{max-width:var(--shell);padding:var(--space-6) var(--space-3) var(--space-12);margin-inline:auto}.dc-hello{gap:var(--space-4);margin-bottom:var(--space-5);padding-bottom:var(--space-4);border-bottom:1px solid var(--border-secondary);grid-template-columns:1.35fr 1fr;align-items:end;display:grid}.dc-hello h1{color:var(--text-primary);text-wrap:balance;max-width:16ch}.dc-lede{color:var(--text-secondary);max-width:40ch;padding-bottom:var(--space-05)}.dc-h{color:var(--text-primary);margin-bottom:var(--space-3)}.dc-h-row{justify-content:space-between;align-items:baseline;gap:var(--space-2);margin-bottom:var(--space-3);flex-wrap:wrap;display:flex}.dc-h-row .dc-h{margin-bottom:0}.dc-count{color:var(--text-tertiary)}.dc-feature{border-radius:var(--radius-2xl);background:var(--card-bg);border:1px solid var(--card-border);box-shadow:var(--shadow-lg);margin-bottom:var(--space-4);text-align:left;cursor:pointer;width:100%;transition:box-shadow .22s var(--ease), transform .22s var(--ease);grid-template-columns:1.05fr 1fr;display:grid;overflow:hidden}.dc-feature:hover{box-shadow:var(--shadow-xl);transform:translateY(-3px)}.dc-feature-art{min-height:340px;position:relative;overflow:hidden}.dc-feature-art svg{width:100%;height:100%;animation:dc-settle .9s var(--ease) both;position:absolute;inset:0}@keyframes dc-settle{0%{opacity:0;filter:blur(14px);transform:scale(1.08)}to{opacity:1;filter:blur();transform:none}}.dc-feature-body{padding:var(--space-5);align-items:flex-start;gap:var(--space-2);flex-direction:column;justify-content:center;display:flex}.dc-feature-body h3{color:var(--text-primary);text-wrap:balance}.dc-feature-body p{color:var(--text-secondary);max-width:40ch}.dc-feature-meta{align-items:center;gap:var(--space-1);color:var(--text-tertiary);display:flex}.dc-grid{gap:var(--space-2);grid-template-columns:repeat(auto-fill,minmax(260px,1fr));display:grid}.dc-card{text-align:left;background:var(--card-bg);border:1px solid var(--card-border);border-radius:var(--radius-lg);box-shadow:var(--shadow-sm);cursor:pointer;transition:box-shadow .18s var(--ease), transform .18s var(--ease);flex-direction:column;display:flex;overflow:hidden}.dc-card:hover{box-shadow:var(--shadow-card-hover);transform:translateY(-3px)}.dc-card-head{align-items:center;gap:var(--space-15);padding:var(--space-2) var(--space-2) 0;display:flex}.dc-card-ico{border-radius:var(--radius-md);background:var(--sj-tint);width:40px;height:40px;color:var(--sj-ink);flex:none;place-items:center;display:grid}.dc-card-ico:empty{display:none}.dc-card-body{padding-top:var(--space-15)}.dc-card-t{font-size:var(--fs-h5);line-height:var(--lh-h5);letter-spacing:-.018em;font-weight:700}.dc-band-eyebrow{color:var(--sj-ink);text-transform:uppercase;letter-spacing:.06em;margin-bottom:var(--space-05)}.dc-band-story{color:var(--text-secondary);margin-top:var(--space-1);max-width:46ch}.dc-band-art{height:88px;margin-bottom:var(--space-2);border-radius:var(--radius-lg);background:var(--sj-tint);position:relative;overflow:hidden}.dc-band-art svg{width:100%;height:100%;position:absolute;inset:0}.dc-card-body{padding:var(--space-2);gap:var(--space-05);flex-direction:column;flex:1;display:flex}.dc-card-t{color:var(--text-primary);text-wrap:balance}.dc-card-b{color:var(--text-secondary);flex:1}.dc-card-foot{align-items:center;gap:var(--space-1);color:var(--text-tertiary);margin-top:var(--space-05);display:flex}.dc-why{align-items:center;gap:var(--space-05);color:var(--sj-ink);margin-top:var(--space-05);display:flex}.dc-why svg{flex:none}.dc-badge{min-height:24px;padding:0 var(--space-1);border-radius:var(--radius-full);background:var(--sj-tint);color:var(--sj-ink);align-items:center;display:inline-flex}.dc-badge--track{box-shadow:inset 0 0 0 1px var(--border-primary);color:var(--text-tertiary);background:0 0}.dc-band{gap:var(--space-4);padding-top:var(--space-4);margin-top:var(--space-4);border-top:1px solid var(--border-secondary);grid-template-columns:220px 1fr;display:grid}.dc-band:first-of-type{border-top:none;margin-top:0}.dc-band{scroll-margin-top:88px}.dc-band-index{align-self:start;position:sticky;top:96px}.dc-band-name{color:var(--sj-ink);text-wrap:balance}.dc-band-rule{border-radius:var(--radius-full);background:var(--sj-base);width:56px;height:4px;margin:var(--space-15) 0}.dc-band-n{color:var(--text-tertiary)}.dc-controls{gap:var(--space-15);margin-bottom:var(--space-4);flex-wrap:wrap;align-items:center;display:flex}.dc-seg{padding:var(--space-05);background:var(--surface-tertiary);border-radius:var(--radius-full);display:inline-flex}.dc-seg button{min-height:40px;padding:0 var(--space-2);border-radius:var(--radius-full);color:var(--text-secondary);cursor:pointer;white-space:nowrap;transition:background .15s var(--ease), color .15s var(--ease);background:0 0;border:none}.dc-seg button:hover{color:var(--text-primary)}.dc-seg button[aria-pressed=true]{background:var(--surface-primary);color:var(--text-primary);box-shadow:var(--shadow-sm)}.dc-chips{gap:var(--space-1);flex-wrap:wrap;display:flex}.dc-chip{align-items:center;gap:var(--space-1);min-height:36px;padding:0 var(--space-2);border:1px solid var(--border-primary);border-radius:var(--radius-full);background:var(--surface-primary);color:var(--text-secondary);cursor:pointer;transition:border-color .15s var(--ease), background .15s var(--ease), color .15s var(--ease);display:inline-flex}.dc-chip:before{content:"";border-radius:var(--radius-full);background:var(--sj-base);flex:none;width:8px;height:8px}.dc-chip:hover{border-color:var(--sj-base);color:var(--text-primary)}.dc-chip[aria-pressed=true]{background:var(--sj-tint);border-color:var(--sj-base);color:var(--sj-ink)}.dc-empty{padding:var(--space-8) var(--space-3);text-align:center;color:var(--text-secondary);border:1px dashed var(--border-primary);border-radius:var(--radius-lg)}.dc-empty strong{color:var(--text-primary);margin-bottom:var(--space-1);display:block}.dc-foot{margin-top:var(--space-8);color:var(--text-tertiary);align-items:center;gap:var(--space-1);flex-wrap:wrap;display:flex}.dc-pb{margin-left:auto}.dc-scrim{z-index:20;background:var(--surface-overlay);-webkit-backdrop-filter:blur(3px);backdrop-filter:blur(3px);animation:dc-fade .18s var(--ease) both;justify-content:center;align-items:flex-end;display:flex;position:fixed;inset:0}@media (width>=768px){.dc-scrim{align-items:center}}.dc-sheet{background:var(--surface-elevated);border-radius:var(--radius-xl) var(--radius-xl) 0 0;width:100%;max-width:560px;max-height:88dvh;box-shadow:var(--shadow-modal);animation:dc-up .26s var(--ease) both;overflow-y:auto}@media (width>=768px){.dc-sheet{border-radius:var(--radius-xl)}}.dc-sheet-art{height:150px;position:relative;overflow:hidden}.dc-sheet-art svg{width:100%;height:100%;position:absolute;inset:0}.dc-sheet-in{padding:var(--space-3) var(--space-4) var(--space-3)}.dc-sheet-foot{z-index:2;align-items:center;gap:var(--space-15);padding:var(--space-2) var(--space-4) calc(var(--space-2) + env(safe-area-inset-bottom));background:var(--surface-elevated);border-top:1px solid var(--border-secondary);display:flex;position:sticky;bottom:0}.dc-sheet-head{align-items:flex-start;gap:var(--space-2);margin-bottom:var(--space-2);display:flex}.dc-sheet-head h2{color:var(--text-primary);margin-top:var(--space-05)}.dc-sheet-close{right:var(--space-15);top:var(--space-15);z-index:2;background:var(--surface-primary);width:40px;height:40px;box-shadow:var(--shadow-sm);border-radius:var(--radius-full);color:var(--text-secondary);cursor:pointer;border:none;place-items:center;display:grid;position:absolute}.dc-sheet-close:hover{color:var(--text-primary)}.dc-sheet-lede{color:var(--text-secondary)}.dc-steps{margin:var(--space-3) 0;flex-direction:column;display:flex}.dc-step{gap:var(--space-2);display:flex}.dc-step-rail{flex-direction:column;flex:none;align-items:center;width:24px;display:flex}.dc-step-dot{width:10px;height:10px;margin-top:var(--space-05);border-radius:var(--radius-full);background:var(--surface-primary);border:2px solid var(--sj-base);opacity:.5}.dc-step:first-child .dc-step-dot,.dc-step:last-child .dc-step-dot{background:var(--sj-base);opacity:1}.dc-step-line{background:var(--sj-base);opacity:.3;width:2px;margin:var(--space-05) 0;flex:1}.dc-step-body{padding-bottom:var(--space-3);flex:1}.dc-step-t{color:var(--text-primary)}.dc-step-n{color:var(--text-secondary);margin-top:2px}.dc-step-m{color:var(--text-tertiary);margin-top:2px}.dc-total{color:var(--text-tertiary);margin-bottom:var(--space-3)}.dc-sheet-foot{gap:var(--space-15);flex-wrap:wrap;display:flex}@keyframes dc-fade{0%{opacity:0}to{opacity:1}}@keyframes dc-up{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:none}}@media (width<=1023px){.dc-band{gap:var(--space-3);grid-template-columns:160px 1fr}.dc-feature-art{min-height:260px}}@media (width<=767px){.dc-head-in{padding:var(--space-15) var(--space-2);gap:var(--space-1);flex-wrap:nowrap}.dc-search{flex:auto;order:0;min-width:0;max-width:none;margin-inline:0}.dc-brand{flex:none}.brand-wm-product{display:none}.brand-wm img{width:76px;height:19px}.dc-search input{font-size:var(--fs-small)}.dc-main{padding:var(--space-3) var(--space-2) var(--space-8)}.dc-hello{gap:var(--space-1);grid-template-columns:1fr;align-items:start}.dc-hello h1{max-width:none;font-size:var(--fs-h1);line-height:var(--lh-h1)}.dc-hello .dc-lede{font-size:var(--fs-small);line-height:var(--lh-small)}.dc-grid,.dc-feature{grid-template-columns:1fr}.dc-feature-art{min-height:132px}.dc-feature-body{padding:var(--space-25)}.dc-feature-tag{min-height:24px;padding:0 var(--space-1);border-radius:var(--radius-full);background:var(--sj-tint);color:var(--sj-ink);text-transform:uppercase;letter-spacing:.06em;margin-bottom:var(--space-1);align-self:flex-start;align-items:center;display:inline-flex}.dc-feature-body-h{font-size:var(--fs-h3);line-height:var(--lh-h3)}.dc-subs{gap:var(--space-1);margin:var(--space-2) 0 var(--space-3)}.dc-subs-l{flex-basis:100%}.dc-band{gap:var(--space-2);grid-template-columns:1fr}.dc-band-index{position:static}.dc-band-rule{margin:var(--space-1) 0}.dc-search{width:var(--tap);transition:width .18s var(--ease);flex:none}.dc-search input{padding:0 var(--space-1) 0 var(--space-6);color:#0000;background:0 0;border-color:#0000}.dc-search input::placeholder{color:#0000}.dc-search:focus-within{flex:1;width:auto}.dc-search:focus-within input{background:var(--input-bg);border-color:var(--input-border-focus);color:var(--text-primary);padding-right:var(--space-5)}.dc-search:focus-within input::placeholder{color:var(--text-secondary)}.dc-search-icon{width:var(--tap);cursor:pointer;justify-content:center;left:0}.dc-search:focus-within .dc-search-icon{left:var(--space-2);width:auto}.dc-head-in:has(.dc-search:focus-within){gap:var(--space-1)}.dc-head-in:has(.dc-search:focus-within) .dc-brand{display:none}.dc-sheet-in{padding:var(--space-3)}}.dc-subs{margin:var(--space-3) 0 var(--space-5);align-items:center;gap:var(--space-1) var(--space-15);flex-wrap:wrap;display:flex}.dc-subs-l{color:var(--text-tertiary);text-transform:uppercase;letter-spacing:.06em}.dc-subs-list{gap:var(--space-1);flex-wrap:wrap;display:flex}.dc-sub{align-items:center;gap:var(--space-1);padding:var(--space-05) var(--space-15);border-radius:var(--radius-full);background:var(--sj-tint);color:var(--sj-ink);font-size:var(--fs-small);line-height:var(--lh-small);font-weight:500;display:inline-flex}.dc-sub-dot{border-radius:var(--radius-full);background:var(--sj-base);flex:none;width:8px;height:8px}.dc-sub-add{align-items:center;gap:var(--space-05);padding:var(--space-1) var(--space-2);border:1px solid var(--border-brand);border-radius:var(--radius-full);background:var(--color-blue-50);min-height:34px;color:var(--color-blue-700);cursor:pointer;transition:background .15s var(--ease);display:inline-flex}[data-theme=dark] .dc-sub-add{color:var(--color-blue-300);background:#3b82f629}.dc-sub-add:hover{background:var(--color-blue-100,#dbeafe)}[data-theme=dark] .dc-sub-add:hover{background:#3b82f624}.dc-sub-add:focus-visible{box-shadow:var(--shadow-focus-blue);outline:none}.dc-filter{align-items:center;gap:var(--space-1);flex-wrap:wrap;display:flex}.dc-filter-l{color:var(--text-tertiary);text-transform:uppercase;letter-spacing:.06em}.dc-persona{margin-top:var(--space-5);padding:var(--space-3);border:1px solid color-mix(in srgb, var(--sj-base) 24%, transparent);border-radius:var(--radius-xl);background:var(--sj-tint)}.dc-persona-list{margin-top:var(--space-25);gap:var(--space-1);grid-template-columns:repeat(auto-fill,minmax(260px,1fr));display:grid}.dc-course{align-items:flex-start;gap:var(--space-05);text-align:left;width:100%;padding:var(--space-2);background:var(--surface-primary);border-radius:var(--radius-md);cursor:pointer;transition:border-color .15s var(--ease), transform .15s var(--ease), box-shadow .15s var(--ease);border:1px solid #0000;flex-direction:column;display:flex}.dc-course:hover{border-color:color-mix(in srgb, var(--sj-base) 40%, transparent);box-shadow:var(--shadow-sm);transform:translateY(-1px)}.dc-persona-list>li{display:flex}.dc-course-n{color:var(--text-primary)}.dc-course-m{color:var(--text-tertiary)}.dc-resume{margin-bottom:var(--space-5);padding-bottom:var(--space-4);border-bottom:1px solid var(--border-secondary)}.dc-resume .dc-h{color:var(--text-primary)}.dc-sub-x{border-radius:var(--radius-full);width:18px;height:18px;color:inherit;opacity:.55;cursor:pointer;transition:opacity .15s var(--ease), background .15s var(--ease);background:0 0;border:0;justify-content:center;align-items:center;margin-left:2px;margin-right:-4px;display:inline-flex}.dc-sub-x:hover{opacity:1;background:color-mix(in srgb, var(--sj-base) 22%, transparent)}.dc-sub-x:focus-visible{box-shadow:var(--shadow-focus-blue);opacity:1;outline:none}.dc-pick{max-width:520px}.dc-pick-list{gap:var(--space-1);margin-top:var(--space-25);flex-direction:column;display:flex}.dc-pick-list .ob-card{width:100%}.dc-fact{padding:var(--space-05) var(--space-15);border:1px solid var(--card-border);border-radius:var(--radius-full);background:var(--surface-secondary,var(--interactive-secondary));color:var(--text-secondary);cursor:pointer;transition:border-color .15s var(--ease), color .15s var(--ease);align-items:center;display:inline-flex}.dc-fact:hover{border-color:var(--border-strong);color:var(--text-primary)}.dc-fact:focus-visible{box-shadow:var(--shadow-focus-blue);outline:none}.dc-pick-h{margin-top:var(--space-25);margin-bottom:var(--space-1);color:var(--text-tertiary);text-transform:uppercase;letter-spacing:.06em}.dc-pick .ob-cards.is-grid{max-height:none}.dc-pick-foot{flex-wrap:wrap}.dc-pick-note{min-width:12ch;color:var(--text-secondary);flex:1}.dc-persona-subject{color:var(--sj-ink);opacity:.7;text-transform:uppercase;letter-spacing:.08em;font-weight:600}.dc-profile{gap:var(--space-3);flex-direction:column;display:flex}.dc-back{align-self:flex-start}.dc-profile-head{align-items:center;gap:var(--space-25);display:flex}.dc-profile-av{border-radius:var(--radius-full);width:72px;height:72px;font-size:var(--fs-h2);background:var(--badge-neutral-bg);color:var(--badge-neutral-text);flex:none;place-items:center;font-weight:700;display:grid}.dc-profile-mail{color:var(--text-secondary)}.dc-profile-rows{border:1px solid var(--card-border);border-radius:var(--radius-lg);background:var(--card-bg);flex-direction:column;display:flex;overflow:hidden}.dc-profile-row{align-items:center;gap:var(--space-2);padding:var(--space-2) var(--space-25);border-top:1px solid var(--border-secondary);grid-template-columns:160px 1fr auto;display:grid}.dc-profile-row:first-child{border-top:none}.dc-profile-k{color:var(--text-tertiary);text-transform:uppercase;letter-spacing:.06em;margin:0}.dc-profile-v{color:var(--text-primary);overflow-wrap:anywhere;min-width:0;margin:0}.dc-profile-bio{gap:var(--space-1);padding:var(--space-25);border:1px solid var(--card-border);border-radius:var(--radius-lg);background:var(--surface-tertiary);flex-direction:column;display:flex}.dc-profile-stat{color:var(--text-secondary)}button.dc-avatar{cursor:pointer;border:none;font-family:inherit}button.dc-avatar:hover{filter:brightness(.96)}@media (width<=767px){.dc-profile-row{gap:var(--space-1) var(--space-2);grid-template-columns:1fr auto}.dc-profile-k{grid-column:1/-1}.dc-profile-av{width:56px;height:56px;font-size:var(--fs-h3)}}.dc-who{align-items:center;gap:var(--space-1);padding:var(--space-05);border-radius:var(--radius-full);cursor:pointer;text-align:left;transition:background .15s var(--ease);background:0 0;border:none;flex:none;font-family:inherit;display:flex}.dc-who:hover{background:var(--interactive-secondary)}.dc-who-t{flex-direction:column;min-width:0;display:flex}.dc-who-n{color:var(--text-primary);white-space:nowrap}.dc-who-p{color:var(--text-tertiary);white-space:nowrap}@media (width<=900px){.dc-who-t{display:none}}.dc-profile-id{flex-direction:column;flex:1;gap:2px;min-width:0;display:flex}.dc-profile-persona{color:var(--text-secondary)}.dc-profile-edit{flex:none}.dc-profile-row[data-wrap=true]{grid-template-columns:160px 1fr auto;align-items:start}.dc-profile-row[data-wrap=true] .dc-profile-v{white-space:pre-wrap}@media (width<=767px){.dc-profile-head{flex-wrap:wrap}.dc-profile-edit{justify-content:center;width:100%}.dc-profile-row[data-wrap=true]{grid-template-columns:1fr auto}}.dc-edit-head{align-items:flex-start;gap:var(--space-2);padding:var(--space-3) var(--space-3) var(--space-2);display:flex}.dc-edit-head h2{color:var(--text-primary)}.dc-edit-note{color:var(--text-secondary);margin-top:var(--space-05)}.dc-edit-head .dc-sheet-close{flex:none;position:static}.dc-edit-body{gap:var(--space-25);padding:0 var(--space-3) var(--space-3);flex-direction:column;display:flex}.dc-edit-group{gap:var(--space-1);flex-direction:column;display:flex}.dc-edit-gl{color:var(--text-tertiary);text-transform:uppercase;letter-spacing:.06em}.dc-edit-opts{gap:var(--space-1);flex-direction:column;display:flex}.dc-edit-opt{text-align:left;width:100%;padding:var(--space-15) var(--space-2);min-height:var(--tap);border:1px solid var(--card-border);border-radius:var(--radius-lg);background:var(--card-bg);cursor:pointer;transition:border-color .15s var(--ease), background .15s var(--ease);flex-direction:column;gap:2px;display:flex}.dc-edit-opt:hover{border-color:var(--border-strong)}.dc-edit-opt.is-on{border-color:var(--interactive-primary);background:var(--color-blue-50)}.dc-edit-opt-t{color:var(--text-primary)}.dc-edit-opt.is-on .dc-edit-opt-t{color:var(--color-blue-700)}.dc-edit-opt-s{color:var(--text-secondary)}.dc-edit-chips{gap:var(--space-1);flex-wrap:wrap;display:flex}.dc-edit-chip{min-height:40px;padding:0 var(--space-2);border:1px solid var(--card-border);border-radius:var(--radius-full);background:var(--card-bg);color:var(--text-primary);cursor:pointer;transition:border-color .15s var(--ease), background .15s var(--ease), color .15s var(--ease)}.dc-edit-chip:hover{border-color:var(--border-strong)}.dc-edit-chip.is-on{background:var(--color-blue-50);border-color:var(--interactive-primary);color:var(--color-blue-700)}.dc-edit-l{color:var(--text-secondary)}.dc-edit-bio{resize:vertical;width:100%;min-height:84px;padding:var(--space-15) var(--space-2);border:1px solid var(--input-border);border-radius:var(--radius-lg);background:var(--input-bg);color:var(--text-primary);font-family:inherit;font-size:var(--fs-body);line-height:var(--lh-body);outline:none}.dc-edit-bio:focus{border-color:var(--input-border-focus);box-shadow:var(--shadow-focus-blue)}.dc-edit .dc-edit-group:has(.dc-edit-opt-t:only-child) .dc-edit-opts{flex-flow:wrap}.dc-edit .dc-edit-group:has(.dc-edit-opt-t:only-child) .dc-edit-opt{align-items:center;width:auto;min-width:56px}.dc-sheet:focus,.dc-sheet:focus-visible{outline:none}.dv-stage{background:var(--surface-tertiary);flex-direction:column;justify-content:center;align-items:center;height:100dvh;display:flex}.dv-fit{display:flex}.dv-device{transform-origin:top;background:var(--surface-primary);flex:none;overflow:hidden}.dv-device.is-device{border-radius:var(--radius-2xl);box-shadow:var(--shadow-xl)}.dv-frame{border:0;width:100%;height:100%;display:block}.dv-switch{z-index:100;pointer-events:none;right:var(--space-2);bottom:calc(var(--space-2) + env(safe-area-inset-bottom));justify-content:flex-end;display:flex;position:fixed}.dv-switch-in{pointer-events:auto;border-radius:var(--radius-xl);background:var(--surface-elevated);box-shadow:var(--shadow-lg);opacity:.55;transition:opacity .16s var(--ease);flex-direction:column;align-items:stretch;gap:2px;padding:3px;display:flex}.dv-switch-in:hover,.dv-switch-in:focus-within{opacity:1}.dv-switch-in .dv-btn:not(.is-on),.dv-switch-in .dv-size{display:none}.dv-switch-in:hover .dv-btn,.dv-switch-in:focus-within .dv-btn{display:inline-flex}.dv-switch-in:hover .dv-size,.dv-switch-in:focus-within .dv-size{display:block}.dv-switch-in .dv-btn{text-align:center;justify-content:center}.dv-switch-in .dv-size{padding:var(--space-05) var(--space-1) 2px;text-align:center}.dv-btn{appearance:none;cursor:pointer;pointer-events:auto;padding:var(--space-1) var(--space-2);border-radius:var(--radius-full);min-height:34px;font-family:inherit;font-size:var(--fs-small);color:var(--text-secondary);transition:background .15s var(--ease), color .15s var(--ease);background:0 0;border:0;align-items:center;font-weight:500;line-height:1;display:inline-flex}.dv-btn:hover{background:var(--surface-tertiary);color:var(--text-primary)}.dv-btn:focus-visible{box-shadow:var(--shadow-focus-blue);outline:none}.dv-btn.is-on{background:var(--color-blue-50);color:var(--color-blue-700)}[data-theme=dark] .dv-btn.is-on{color:var(--color-blue-300);background:#3b82f629}.dv-size{color:var(--text-tertiary);font-variant-numeric:tabular-nums;white-space:nowrap}@media (width<=767px){.dv-switch{display:none}}@media (prefers-reduced-motion:reduce){.dv-btn{transition:none}}:root{--lightningcss-light:initial;--lightningcss-dark: ;color-scheme:light;--font-sans:"Satoshi", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;--font-mono:"JetBrains Mono", ui-monospace, "Cascadia Code", monospace;--color-stone-900:#1c1917;--color-stone-800:#292524;--color-stone-600:#57534e;--color-stone-500:#78716c;--color-stone-400:#a8a29e;--color-stone-300:#d6d3d1;--color-stone-200:#e7e5e4;--color-stone-100:#f5f3ef;--color-stone-50:#faf8f5;--color-blue-800:#163872;--color-blue-700:#1d4ed8;--color-blue-600:#2563eb;--color-blue-500:#3b82f6;--color-blue-400:#60a5fa;--color-blue-300:#93c5fd;--color-blue-100:#dbeafe;--color-blue-50:#eff6ff;--color-green-700:#047857;--color-green-500:#10b981;--color-green-100:#d1fae5;--color-rose-700:#be123c;--color-rose-600:#e11d48;--color-rose-100:#ffe4e6;--color-rose-50:#fff1f2;--color-amber-700:#b45309;--color-amber-100:#fef3c7;--surface-primary:#fff;--surface-secondary:#faf8f5;--surface-tertiary:#f5f3ef;--surface-elevated:#fff;--surface-overlay:#1c191766;--text-primary:#1c1917;--text-secondary:#57534e;--text-tertiary:#78716c;--text-disabled:#d6d3d1;--text-inverse:#fafaf9;--text-brand:#2563eb;--text-success:#047857;--text-danger:#9f1239;--border-primary:#1c191714;--border-secondary:#1c19170f;--border-strong:#1c191733;--border-brand:#2563eb;--border-focus:#2563eb;--persona-student:#ef6c4f;--persona-student-bold:#c93f1f;--persona-student-subtle:#fef0ec;--persona-instructor:#4f46e5;--persona-instructor-bold:#3730a3;--persona-instructor-subtle:#eef0fd;--persona-parent:#0d9488;--persona-parent-bold:#0f6e64;--persona-parent-subtle:#e6f6f4;--subject-mathematics-ink:#004069;--subject-mathematics-base:#006aaf;--subject-mathematics-tint:#dfeaf4;--subject-science-ink:#19590f;--subject-science-base:#299519;--subject-science-tint:#d4ead1;--subject-ela-ink:#8f531c;--subject-ela-base:#ee8b2f;--subject-ela-tint:#fce8d5;--subject-data-ink:#006899;--subject-data-base:#00aeff;--subject-data-tint:#ccefff;--subject-professional-ink:#3730a3;--subject-professional-base:#4f46e5;--subject-professional-tint:#eef0fd;--subject-finance-ink:#0f6e64;--subject-finance-base:#0d9488;--subject-finance-tint:#e6f6f4;--subject-teaching-ink:#c93f1f;--subject-teaching-base:#ef6c4f;--subject-teaching-tint:#fef0ec;--subject-exam-ink:#997020;--subject-exam-base:#ffbb36;--subject-exam-tint:#fff1d7;--interactive-primary:#2563eb;--interactive-primary-hover:#1d4ed8;--interactive-primary-active:#1e3a8a;--interactive-secondary:#f5f3ef;--interactive-secondary-hover:#e7e5e4;--card-bg:#fff;--card-border:#1c19170f;--input-bg:#fff;--input-border:#1c19171f;--input-border-focus:#2563eb;--badge-neutral-bg:#f5f3ef;--badge-neutral-text:#57534e;--shadow-xs:0 1px 2px #1c19170a;--shadow-sm:0 0 0 1px #1c19170f, 0 1px 2px #1c19170a;--shadow-md:0 0 0 1px #1c19170f, 0 1px 2px #1c19170a, 0 8px 16px -8px #1c191714;--shadow-lg:0 0 0 1px #1c19170f, 0 1px 2px #1c19170a, 0 8px 16px -8px #1c191714, 0 16px 32px -16px #1c19171f;--shadow-xl:0 0 0 1px #1c191714, 0 4px 8px #1c19170a, 0 12px 24px #1c19170f, 0 24px 48px #1c191714, 0 48px 96px #1c19171f;--shadow-card:var(--shadow-md);--shadow-card-hover:var(--shadow-lg);--shadow-modal:var(--shadow-xl);--shadow-focus-blue:0 0 0 3px #2563eb59;--radius-xs:4px;--radius-sm:6px;--radius-md:10px;--radius-lg:14px;--radius-xl:20px;--radius-2xl:28px;--radius-full:9999px;--space-0:0px;--space-05:4px;--space-1:8px;--space-15:12px;--space-2:16px;--space-25:20px;--space-3:24px;--space-4:32px;--space-5:40px;--space-6:48px;--space-8:64px;--space-10:80px;--space-12:96px;--fs-display:56px;--lh-display:64px;--fs-h1:40px;--lh-h1:48px;--fs-h2:32px;--lh-h2:40px;--fs-h3:24px;--lh-h3:32px;--fs-h4:20px;--lh-h4:28px;--fs-h5:16px;--lh-h5:24px;--fs-eyebrow:12px;--lh-eyebrow:16px;--fs-body-lg:18px;--lh-body-lg:28px;--fs-body:16px;--lh-body:24px;--fs-small:15px;--lh-small:22px;--fs-caption:12px;--lh-caption:16px;--ease:cubic-bezier(.2, 0, .15, 1);--tap:48px;--shell:1200px}@media (width<=1023px){:root{--fs-display:44px;--lh-display:48px;--fs-h1:34px;--lh-h1:40px;--fs-h2:28px;--lh-h2:36px;--fs-h3:22px;--lh-h3:28px;--fs-h4:18px;--lh-h4:24px}}@media (width<=767px){:root{--fs-display:36px;--lh-display:40px;--fs-h1:28px;--lh-h1:36px;--fs-h2:24px;--lh-h2:32px;--fs-h3:20px;--lh-h3:28px;--fs-body-lg:16px;--lh-body-lg:24px}}[data-theme=dark]{--lightningcss-light: ;--lightningcss-dark:initial;color-scheme:dark;--surface-primary:#1c1917;--surface-secondary:#292524;--surface-tertiary:#44403c;--surface-elevated:#292524;--surface-overlay:#0c0a09b3;--text-primary:#fafaf9;--text-secondary:#d6d3d1;--text-tertiary:#a8a29e;--text-disabled:#78716c;--text-inverse:#1c1917;--text-brand:#60a5fa;--text-success:#34d399;--text-danger:#fb7185;--border-primary:#ffffff14;--border-secondary:#ffffff0f;--border-strong:#ffffff29;--border-brand:#60a5fa;--border-focus:#60a5fa;--persona-student:#f48a72;--persona-student-bold:#ef6c4f;--persona-student-subtle:#ef6c4f1f;--persona-instructor:#818cf8;--persona-instructor-bold:#4f46e5;--persona-instructor-subtle:#4f46e526;--persona-parent:#2dd4bf;--persona-parent-bold:#14b8a6;--persona-parent-subtle:#0d948826;--interactive-primary:#3b82f6;--interactive-primary-hover:#60a5fa;--interactive-primary-active:#93c5fd;--interactive-secondary:#44403c;--interactive-secondary-hover:#57534e;--card-bg:#292524;--card-border:#ffffff0f;--input-bg:#292524;--input-border:#ffffff1f;--badge-neutral-bg:#44403c;--badge-neutral-text:#d6d3d1}*,:before,:after{box-sizing:border-box}html{-webkit-text-size-adjust:100%}body{background:var(--surface-primary);color:var(--text-primary);font-family:var(--font-sans);font-size:var(--fs-body);line-height:var(--lh-body);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;margin:0}h1,h2,h3,h4,h5,p{margin:0}ul,ol{margin:0;padding:0;list-style:none}button{color:inherit;font-family:inherit}a{color:inherit;text-decoration:none}.text-display{font-size:var(--fs-display);line-height:var(--lh-display);letter-spacing:-.025em;font-weight:700}.text-h1{font-size:var(--fs-h1);line-height:var(--lh-h1);letter-spacing:-.022em;font-weight:700}.text-h2{font-size:var(--fs-h2);line-height:var(--lh-h2);letter-spacing:-.02em;font-weight:700}.text-h3{font-size:var(--fs-h3);line-height:var(--lh-h3);letter-spacing:-.015em;font-weight:600}.text-h4{font-size:var(--fs-h4);line-height:var(--lh-h4);letter-spacing:-.01em;font-weight:600}.text-h5{font-size:var(--fs-h5);line-height:var(--lh-h5);font-weight:600}.text-eyebrow{font-size:var(--fs-eyebrow);line-height:var(--lh-eyebrow);letter-spacing:.08em;text-transform:uppercase;font-weight:600}.text-body-lg{font-size:var(--fs-body-lg);line-height:var(--lh-body-lg);font-weight:400}.text-body{font-size:var(--fs-body);line-height:var(--lh-body);font-weight:400}.text-body-md{font-size:var(--fs-body);line-height:var(--lh-body);font-weight:500}.text-body-sb{font-size:var(--fs-body);line-height:var(--lh-body);font-weight:600}.text-small{font-size:var(--fs-small);line-height:var(--lh-small);font-weight:400}.text-small-md{font-size:var(--fs-small);line-height:var(--lh-small);font-weight:500}.text-caption{font-size:var(--fs-caption);line-height:var(--lh-caption);font-weight:500}.tnum{font-variant-numeric:tabular-nums;font-feature-settings:"tnum" 1}.btn{justify-content:center;align-items:center;gap:var(--space-1);min-height:var(--tap);padding:0 var(--space-3);border-radius:var(--radius-full);font-size:var(--fs-body);cursor:pointer;white-space:nowrap;transition:background .15s var(--ease), border-color .15s var(--ease), color .15s var(--ease);border:1px solid #0000;font-weight:600;line-height:1;display:inline-flex}.btn:disabled{opacity:.4;cursor:not-allowed}.btn--primary{background:var(--interactive-primary);color:#fff}.btn--primary:hover:not(:disabled){background:var(--interactive-primary-hover)}.btn--primary:active:not(:disabled){background:var(--interactive-primary-active)}.btn--outline{border-color:var(--border-brand);color:var(--text-brand);background:0 0}.btn--outline:hover:not(:disabled){background:var(--color-blue-50)}.btn--ghost{color:var(--text-secondary);padding:0 var(--space-15);background:0 0}.btn--ghost:hover:not(:disabled){background:var(--interactive-secondary);color:var(--text-primary)}.btn--sm{min-height:32px;padding:0 var(--space-2);font-size:var(--fs-small)}.sr{clip:rect(0 0 0 0);white-space:nowrap;border:0;width:1px;height:1px;margin:-1px;padding:0;position:absolute;overflow:hidden}@media (prefers-reduced-motion:reduce){*,:before,:after{transition-duration:.01ms!important;animation-duration:.01ms!important;animation-iteration-count:1!important}}[data-subject]{--sj-ink:var(--color-blue-700);--sj-base:var(--color-blue-500);--sj-tint:var(--color-blue-50)}[data-theme=dark] [data-subject=__navigator],[data-theme=dark] [data-subject=""]{--sj-ink:var(--color-blue-500);--sj-tint:#3b82f624}[data-subject=Mathematics]{--sj-ink:var(--subject-mathematics-ink);--sj-base:var(--subject-mathematics-base);--sj-tint:var(--subject-mathematics-tint)}[data-subject=Science]{--sj-ink:var(--subject-science-ink);--sj-base:var(--subject-science-base);--sj-tint:var(--subject-science-tint)}[data-subject="English Language Arts"]{--sj-ink:var(--subject-ela-ink);--sj-base:var(--subject-ela-base);--sj-tint:var(--subject-ela-tint)}[data-subject="Data & AI"]{--sj-ink:var(--subject-data-ink);--sj-base:var(--subject-data-base);--sj-tint:var(--subject-data-tint)}[data-subject=Professional\ skills]{--sj-ink:var(--subject-professional-ink);--sj-base:var(--subject-professional-base);--sj-tint:var(--subject-professional-tint)}[data-subject=Finance]{--sj-ink:var(--subject-finance-ink);--sj-base:var(--subject-finance-base);--sj-tint:var(--subject-finance-tint)}[data-subject=Teaching]{--sj-ink:var(--subject-teaching-ink);--sj-base:var(--subject-teaching-base);--sj-tint:var(--subject-teaching-tint)}[data-subject=Exam\ preparation]{--sj-ink:var(--subject-exam-ink);--sj-base:var(--subject-exam-base);--sj-tint:var(--subject-exam-tint)}[data-subject=Soft\ Skills]{--sj-ink:var(--subject-professional-ink);--sj-base:var(--subject-professional-base);--sj-tint:var(--subject-professional-tint)}[data-subject="Machine Learning Applications"]{--sj-ink:var(--subject-data-ink);--sj-base:var(--subject-data-base);--sj-tint:var(--subject-data-tint)}[data-subject="Digital Twin Technology"]{--sj-ink:var(--subject-mathematics-ink);--sj-base:var(--subject-mathematics-base);--sj-tint:var(--subject-mathematics-tint)}[data-subject=Aviation\ Communications]{--sj-ink:var(--subject-finance-ink);--sj-base:var(--subject-finance-base);--sj-tint:var(--subject-finance-tint)}[data-subject=Buddhism]{--sj-ink:var(--subject-ela-ink);--sj-base:var(--subject-ela-base);--sj-tint:var(--subject-ela-tint)}[data-theme=dark]{--subject-mathematics-ink:#66a6cf;--subject-mathematics-tint:#006aaf29;--subject-science-ink:#7fbf75;--subject-science-tint:#29951929;--subject-ela-ink:#f5b982;--subject-ela-tint:#ee8b2f29;--subject-data-ink:#66ceff;--subject-data-tint:#00aeff29;--subject-professional-ink:#a5b4fc;--subject-professional-tint:#4f46e52e;--subject-finance-ink:#5eead4;--subject-finance-tint:#0d94882e;--subject-teaching-ink:#f9a895;--subject-teaching-tint:#ef6c4f29;--subject-exam-ink:#ffd686;--subject-exam-tint:#ffbb3629}::selection{background:var(--color-blue-100);color:var(--color-blue-800)}[data-theme=dark] ::selection{color:#fff;background:#3b82f659}:root{accent-color:var(--interactive-primary);caret-color:var(--interactive-primary)}*{scrollbar-width:thin;scrollbar-color:var(--color-stone-300) transparent}[data-theme=dark] *{scrollbar-color:var(--color-stone-600) transparent}::-webkit-scrollbar{width:10px;height:10px}::-webkit-scrollbar-track{background:0 0}::-webkit-scrollbar-thumb{background:var(--color-stone-300);border-radius:var(--radius-full);background-clip:content-box;border:3px solid #0000}::-webkit-scrollbar-thumb:hover{background:var(--color-stone-400);background-clip:content-box}[data-theme=dark] ::-webkit-scrollbar-thumb{background:var(--color-stone-600);background-clip:content-box}:focus-visible{box-shadow:var(--shadow-focus-blue);border-radius:var(--radius-xs);outline:none}a{text-underline-offset:.18em;text-decoration-thickness:.08em}.brand-pb{align-items:center;gap:var(--space-1);color:var(--text-tertiary);display:flex}.brand-pb img{width:76px;height:auto;display:block}.brand-wm{align-items:center;gap:var(--space-1);display:flex}.brand-wm img{width:140px;height:35px;display:block}.brand-wm-product{color:var(--text-tertiary);font-weight:500}